Add a new page. edit this panel. Top-down and bottom-up theories of perception. Psychologists often distinguish between top-down and bottom-up approaches to information-processing. In top-down approaches, knowledge or expectations are used to guide processing.
Full Bed vs. Queen Bed. A full-size bed is sometimes called a âdouble bedâ or simply a âfull bedâ; it is bigger than the twin bed (a.k.a. single bed) and smaller than a queen-size bed. A full size bed is 54 inches wide and 75 inches long while queen size beds are 60 inches in width and 80 inches in length. 1 Dimensions.
While the sheets designed for full or double beds vary in size from brand to brand or even style to style, the mattresses they are designed to fit are all 54 inches wide, 75 inches long. A fitted sheet for a full or double bed closely matches the actual mattress size for a snug fit, while flat sheet sizes are larger. There is no standard measurement for a full or double flat sheet; in one brand, the sheet may be 81 inches wide, while another offers an 85-inch-wide flat sheet.